63 Free AI Tools to Build a Web App (2026)

AI code editor with agents, tab completion, and chat for full-stack development.

Free forever · , Limited agent and chat requests

Vibe CodingGreat free

Build full-stack apps with auth, database and hosting from a chat prompt.

Free forever · , Limited monthly message and integration credits

Vibe Coding

Turn prompts or Figma designs into production-ready web and mobile apps.

Free forever · , Limited monthly tokens to build web and mobile apps

Vibe Coding

Turn ideas into full-stack Next.js and Supabase apps with AI.

Free forever · , Limited monthly credits

Vibe Coding

No-code mobile and web app builder with AI-assisted features.

Free forever · , Unlimited test apps, limited records

Vibe Coding

Open-source low-code platform for internal tools with AI assistants.

Free forever · , Open-source and free cloud for small teams

Vibe Coding

Low-code platform that builds internal apps from prompts.

Free forever · , Limited builders and apps with AI app generation

Vibe Coding

Website builder with AI site generation and an AI assistant.

Free forever · , Build a site with AI on a Wix subdomain

Vibe Coding

Ad-supported free AI coding agent for the terminal, desktop, web and GitHub repos.

Free forever · , Free $0/month plan funded by text ads: free hours refilled daily (30 hours a day shown on the plans page for full access; 5 hours a day in limited mode, 4 on a VPN or proxy)

AI Coding Assistants

Visual builder for React apps and websites.

Free forever

Vibe Coding

Turn Figma designs into native apps.

Free forever

Vibe Coding

No-code apps on top of your data with AI.

Free forever

Vibe Coding

Low-code app platform with AI.

Free forever · , Free plan after the 15-day fully featured trial

Vibe Coding

Low-code platform with AI assistance.

Free forever

Vibe Coding

Low-code automation with AI and JavaScript.

Free forever · , Then pay as you go

AI Agents & Automation

Agentic vibe-coding platform that builds and deploys full-stack apps.

Free forever · , Monthly credits to try the agent

Vibe Coding

AI-powered visual editor for building React apps with designers and PMs.

Free forever · , Limited daily prompts for React apps

Vibe Coding

AI website builder that generates a business site in seconds.

Free forever · , AI website builder with core features

Vibe Coding

AI agents that build and run your business (pythagora.ai now redirects to Pazi).

Free forever · , Paid plans add monthly funding to your business balance

Vibe Coding

AI website builder that designs and codes sites from a conversation.

Free forever · , Limited monthly credits to design and build sites

Vibe Coding

AI software engineer for CRUD business apps and admin panels.

Free forever · , Limited AI credits to generate business apps

Vibe Coding

Visual development platform that turns Figma designs and prompts into code.

Free forever · , Limited AI credits and Visual Copilot

Vibe Coding

Build React Native mobile apps visually with AI assistance.

Free forever · , Limited apps and AI usage

Vibe Coding

Build internal tools and AI apps on any database or API.

Free forever · , Up to 5 users with AI app generation

Vibe Coding

Build business apps and portals with AI, no code needed.

Free forever · , Unlimited apps with limited usage

Vibe Coding

AI developer agent that builds production backends and apps on your cloud.

Free forever · , Limited monthly credits

Vibe Coding

Vibe-code Gemini-powered web apps in Google AI Studio's Build mode.

Free forever · , Build and share Gemini-powered apps in AI Studio at no cost

Vibe Coding

AI agent specialized in frontend: Figma and prompts to code.

Free forever · , Limited monthly credits for frontend agent

Vibe Coding

File uploads for full-stack TypeScript apps.

Free forever

Dev Infrastructure & AI APIs

Multi-agent AI dev team (MetaGPT X) that builds apps.

Free forever

Vibe Coding

Builds and deploys web apps from natural language with GitHub sync.

Free forever · , Free grants, private projects, unlimited collaborators, 5 lovable.app domains

Vibe Coding

AI app builder with built-in backend, auth and hosting.

Free forever

Vibe Coding

Cognition's agent editor (formerly Windsurf, earlier Codeium): run local and cloud coding agents next to a full IDE with Tab completions and inline edits.

Free forever · , Light quota to code with agents, limited model availability, unlimited inline edits and Tab completions

Vibe Coding

Build client portals and internal tools on Airtable and other data with AI.

Free forever · , Limited apps and users with AI app generator

Vibe Coding

Free, local, open-source AI app builder that runs on your machine.

Free forever · , Open-source local app builder, bring your own API keys

Vibe Coding

Build websites and web apps by chatting with an AI agent.

Free forever · , Limited messages to build and publish sites

Vibe Coding

Create interactive websites, apps and games from prompts and remix others.

Free forever · , Create games and apps for free

Vibe Coding

Build websites and AI apps by describing them in plain language.

Free forever · , Limited monthly credits

Vibe Coding

Turn designs and prompts into React, HTML and Tailwind code.

Free forever · , Limited monthly chats and code exports

Vibe Coding

Visual Flutter app builder with AI page and component generation.

Free forever · , Build apps visually with AI page generation

Vibe Coding

No-code native mobile app builder with AI integrations.

Free forever · , Limited projects for learning and prototyping

Vibe Coding

Open-source low-code platform for internal apps and workflows.

Free forever · , Open-source self-hosted edition is free (1 workspace, unlimited apps, automations, agents and users); no free Budibase Cloud tier (cloud plans have a 14-day trial)

Vibe Coding

Visual website builder with AI site generation and Webflow AI.

Free forever · , Free Starter plan on a webflow.io domain

Vibe Coding

Open-source version of Bolt that works with any LLM.

Free forever · , Open-source, self-hosted, bring your own model keys

Vibe Coding

Try and prototype with NVIDIA-hosted open models via API.

Free forever · , Hosted inference endpoints for leading open models (rate-limited)

Dev Infrastructure & AI APIs

Open-source Python library to build ML demos and web apps.

Free forever · , Free open-source library; free hosting on Hugging Face Spaces

Dev Infrastructure & AI APIs

Build full-stack web apps with AI, no code required.

Free forever

Vibe Coding

AI prototyping tool for product teams.

Free forever

Vibe Coding

No-code full-stack app builder with AI.

Free forever

Vibe Coding

AI-powered no-code front-end builder.

Free forever

Vibe Coding

Landing page builder with AI.

Free forever · , Free Lurker plan

Vibe Coding

Open-source visual website builder.

Free forever · , Wstd.io subdomain, unlimited projects and pages

Vibe Coding

Open-source app that clones and recreates websites as React apps with AI.

Free forever · , Open source

Vibe Coding

Low-code internal tool builder with AI.

Free forever

Vibe Coding

AI-powered low-code platform.

Free forever · , Free Personal Edition

Vibe Coding

Google's no-code app builder.

Free forever · , Free while building and testing apps (up to 10 test users)

Vibe Coding

Build interactive web experiences with Canva AI.

Free forever · , X

Vibe Coding

AI game and app creator.

Free forever · , Free to make and play games

Vibe Coding

Open-source app builder and TypeScript notebook with AI.

Free forever · , Open source

Vibe Coding

Cloud IDE with Replit Agent to scaffold, edit, and deploy apps from prompts.

Free forever · , Free Mode: brainstorm and create without token costs; first prompt free

Vibe Coding

AI website builder for startups.

Free forever · , Free $0 forever: a live website with a Mixo badge, a Mixo-branded URL and a contact form

Vibe Coding

In-browser AI app builder that edits and runs full-stack projects from chat.

Free forever · , 300K tokens/day and 1M tokens/month; Bolt branding on sites

Vibe Coding

Generates React UI from prompts with shadcn-style components you can copy or deploy.

Free plan · , $5 one-time credits for new users, 7 messages/day

Vibe Coding